Gas-mixing burner.



B. H. WIGHT.

GAS MIXING BURNER; APPLICATION FILED JAIL-2a, 1912.

Patented Jan. 14, 1913.

I Inventor:

witnesses: A?! 3; IB

the nozzle'where they are consumed, and

' of said extension UNITED STATES PATENT FTQE.

EDVARD H. WIGHT, OE QUINCY, MASSACHUSETTS.

GAS-MIXIN BURNER.

Specification of Letters Patent. Patented Jan Application filed January 23, 1912. Serial No. 672,852.

To all whom 1'23 may concern: provided with a tubular boss 9 on one end Be it known that I, EDWARD H. VVron'r, a which is threaded into the bore of nipple e, citizen of the United States, residing at I the opposite end of the casing f being held Quincy, in the county of Norfolk, State of against the inner surface of the extension Z) assachusetts, have invented an Improveat its larger end, to make'a tight connection ment in Gas-Mixing Burners, of which the therewith. An annular receiving chamber h following'is a specification. is thus provided between the inner walls of This invention relates to certain improvethe outer casing a and the outer walls of the ments in devices for mixing burning gases, inner casing f, which extends throughout and while it is especially intended for use in substantially the entire length thereof. Said mixing and burning oxygen and acetylene casing f is provided with an imperforate gases, it may be used in other relations. partition 2' in its middle portion which di The mixture, when burned, produces an invides the'same into an inlet chamber j, into tense heat, and the economy with which the which the passages through the boss 9 leads, burner is operated depends, to a large deand into a discharge chamber Z1, which gree, on the thoroughness with whichthe opens directly into the interior of the exgases are mixed before they are burned. tension 6, at itslarger end. The walls of the The intense heat which is produced also chamber 7' are provided with a series of ra-' tends to cause the nozzle or burner, to be dially disposed apertures m, which are arheated to a high degree, so that the nozzle ranged in a plane perpendicular to casing has to be frequently cooled and is often adjacent the partition 13 and at one side of damaged'by the high heat. the inlet passage 03. The walls of the cham- The object of my invention is to produce her k are also provided with a series of raa device of the character above referred to dially disposed passages a, similarly arwhich will cause the gases to be thoroughly ranged in a plane perpendicular to casing f, mixed before they aredelivered to the tip of each passage being arranged in an alinement with a corresponding, oppositely disposed passage. l

he operation is as follows :The oxygen gas is forced through the nipple e into the chamber 7' and is discharged through the apertures 77 in radialdirections into the annular receiving chamber 72,. At the same time the acetylene gas is forced through the pipe (5 into said chamber it, so that the jets of oxygen gas are discharged into a chamber containing acetylene gas and the two gases become partially mixed. The partial mixture thus secured is conducted along the annular chamber 71. until it reaches the apertures n, where it is forcibly. discharged through said apertures into the chamber Z1. As the jets of partly mixed gas will be directed toward each other, and each toward a they will intercept each common center,

other, causing the gases to be thoroughly mixed. The mixture. will then be conducted chamber of the extension 6 to the into the nozzle 0.

By providing an elongated chamber through which the mixture must pass as 'it is delivered to the nozzle tip, the parts adjacent the flame are cooled to a sufiicient extent by the gas, as it passes therethrough further, to provide a form of nozzle in which the gases themselves will act to cool the nozzle, as they pass therethrough, to a suflicient extent to prevent the same from becoming so highly heated as to be detrimental thereto, or so that it will be necessary to cool the same while it is being used.

I accomplish these objects by the means shown in the accompanying drawing, in which, Figure 1 is a side elevation of a nozzle or burner made according to my invention. Fig. 2 is a longitudinally sectional view thereof. Figs. 3, 4 and 5 are respectively cross-sections at the lines 33, l-4t and 5.5 of Fig. 2. v

In the drawing a indicates a hollow outer casing, which is of elongated cylindrical form and has a conical-shaped hollow extension b; threaded on one end thereof, a burner tip 0 being threaded on the small end and connected thereto. The casing a has an inlet pass-aged, for the acetylene gas, leading through its side wall at its opposite end from extension 5, and a nipple e is threaded into an aperture in the adjacent end of said casing a. A tubular inner casing f, of cylindrical form, is centrally arranged within the casing a and is to prevent them from being heated to such a .419 I I temperature as to cause injurythereto, or make it necessary to cool them at intervals While in use.

I claim:

1. A gas-mixing burner having two inner chambers arranged at difierent longitudinal points and an outer chamber surrounding said inner chambers, extending therebetween and having a gas inlet leading thereto, one of said inner chambers having a gas inlet and a series of oppositely extending outlets leading to said outer chamber and the other of said inner chambers having a series of oppositely disposed inlets leading thereto from said outer chamber, and a burner tip connected to said last named inner chamber, substantially as described.

2. A gas-mixing burner, comprising an outer casing, an inner casing centrallv disposed within said outer casing, extending longitudinally thereof and providing an annular receiving chamber, said outer casing having a gas inlet therethrough to said chamber, and said inner casing having an inlet chamber, an inlet leading thereto, a series of outlet passages in its walls leading into said receiving chamber, a centrally disposed dischargechamber, separated from said inlet chamber, and a series of passages in the Walls of said discharge chamber leading from said receiving chamber and oppositely arranged to cause the jets of gas passing into said discharge chamber to intercept each other, and a burner tip connected to said discharge'chamber, substantially as described.

3. A gas-mixing burner, comprising two cylindrical casings arranged one within the other and providing an annular intermediate receiving chamber, said inper casing having an inlet and a discharge chamber oppositely disposed at the endgs thereof, means for conducting gas from in ependent sources to said receiving chamber and said inlet chamber, respectively, the wall of said inlet 4 chamber having a series of passages therethrough leading into said receiving chamher, to cause a partial mixing of the gases, and the wall of said discharge chamber hav ing a series of radially disposed passages a theretl'irough, leading into said receiving chamber, and arranged to cause jets of the partially mixed gas, passing therefrom, to intercepteach other Within said discharge chamber, and a burner tip connected to said 5 discharge chamber, substantially as described.

in testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

EDWARD ll. VlGll'l. \Vitnesses L. H. HARRLMAN, H. B. DAVIS. 

